158285494500 has 768 divisors, whose sum is σ = 581188608000. Its totient is φ = 32659200000.

The previous prime is 158285494487. The next prime is 158285494511. The reversal of 158285494500 is 5494582851.

158285494500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 630619375 + ... + 630619625.

It is an arithmetic number, because the mean of its divisors is an integer number (756756000).

Almost surely, 2^158285494500 is an apocalyptic number.

158285494500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158285494500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290594304000).

158285494500 is an abundant number, since it is smaller than the sum of its proper divisors (422903113500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

158285494500 is a wasteful number, since it uses less digits than its factorization.

158285494500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 51.

The spelling of 158285494500 in words is "one hundred fifty-eight billion, two hundred eighty-five million, four hundred ninety-four thousand, five hundred".